for Vespa ET2/ET4 50-150ccm l 235 mm body: black spring: red with ABE, KBA 91849 Chassis SPORT – comfortable Product description Sports orientated shock absorbers improve the setup of your suspension noticeably. BITUBO have had stylish and effective items available for decades so that Vespa riders can improve the handling of their scooters. Their extensive experience on the racing scene flows directly into the development of their shock absorbers and every single unit is subject to an exacting testing process before they leave the factory to ensure their usual high quality standards are met. BITUBO can also supply European vehicle certification for almost all their products to ensure completely legal road use of their components with your scooter. The following BITUBO shock absorbers are available for Modern Vespas: GEV: Sport orientated front shock absorber including a 12mm damping piston rod, gas-pressured, spring pre-load is adjustable to twelve pre-set levels, external damping